void replaceData(unsigned long offset, unsigned long count, String arg) throws DOMException;
offset
The character position within the Text or Comment node at which the replacement is to begin.
count
The number of characters to be replaced.
arg
The string that replaces the characters specified by offset and count.
This method may throw a DOMException with one of the following code values in the following circumstances:
INDEX_SIZE_ERR
offset is negative or greater than the length of the Text or Comment node, or count is negative.
NO_MODIFICATION_ALLOWED_ERR
The node is read-only and may not be modified.
This method replaces count characters starting at position offset with the contents of the string arg. If the sum of offset and count is greater than the length of the Text or Comment node, all characters from offset on are replaced.